add double_underline and overline effect

Learnt these from ku1ik/rainbow#125
MidAutumnMoon · Sep 15, 2024 · be60ffd · be60ffd
1 parent c574169
commit be60ffd
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/README.md b/README.md
@@ -78,6 +78,8 @@ Full list of methods for applying terminal effects:
 * `#invert`
 * `#hide`
 * `#strike`
+* `#double_underline`
+* `#overline`
 
 Demo:
 

diff --git a/lib/reinbow/color/effects.rb b/lib/reinbow/color/effects.rb
@@ -33,12 +33,16 @@ module Reinbow
         invert: 7,
 
         # Conceal or hide
-        # (Windows Terminal do support this effect,
-        # a bit suprised)
         hide: 8,
 
         # Crossed-out, or strike
         strike: 9,
-    }.transform_values { Effect.new( _1 ) }
+
+        # Doubly underlined
+        double_underline: 21,
+
+        # Overlined
+        overline: 53,
+    }.transform_values { Effect.new( _1 ) }.freeze
 
 end